mind's shortcuts
The mind takes shortcuts all the time, it remind me of how many people don't stop to smell the roses, per se.
Honestly, the questions were not that difficult to figure out, but I ran a test on others to see how it affected their responses anyway. After speaking with four people and posing the questions, they all responded initially with the wrong answers. Once they realized that I was still searching for true answers, some got it and found the right answers. Once it was explained to them, they were able to grasp that they too were using shortcuts.
I love this little nugget: "...the driving forces behind biases - the root causes of our irrationality - are largely unconscious, which means they remain invisible to self-analysis and impermeable to intelligence."
One common observational note, most people I meet hardly ever self-analyze.